There are those where all you can see out the windows is forbidding blank brick walls mere feet away, often in courtyards.

Other more distant exposures may tower so high that the only way to glimpse the sky is to stick your head out the window.

Others may consist of buildings some distance away, perhaps half a block, where it is impossible to see anything worth seeing — not a skyline, not a river, nothing of interest and nothing particularly offensive.

Then there are those exposures like the one in the photo that are partly blocked by buildings across the way, letting in a modicum of light but permitting nothing like a view. What they offer is a patch of blue.